// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_RASTER_TILE_TASK_H_
#define CC_RASTER_TILE_TASK_H_

#include <vector>

#include "cc/raster/task.h"

namespace cc {

class CC_EXPORT TileTask : public Task {
public:
    typedef std::vector<scoped_refptr<TileTask>> Vector;

    const TileTask::Vector& dependencies() const { return dependencies_; }

    // Indicates whether this TileTask can be run at the same time as other tasks
    // in the task graph. If false, this task will be scheduled with
    // TASK_CATEGORY_NONCONCURRENT_FOREGROUND.
    bool supports_concurrent_execution() const
    {
        return supports_concurrent_execution_;
    }

    // This function should be called from origin thread to process the completion
    // of the task.
    virtual void OnTaskCompleted() = 0;

    void DidComplete();
    bool HasCompleted() const;

protected:
    explicit TileTask(bool supports_concurrent_execution);
    TileTask(bool supports_concurrent_execution, TileTask::Vector* dependencies);
    ~TileTask() override;

    const bool supports_concurrent_execution_;
    TileTask::Vector dependencies_;
    bool did_complete_;
};

} // namespace cc

#endif // CC_RASTER_TILE_TASK_H_
